[OASIS Issue Tracker] (TOSCA-174) Evaluate container lifecycle support in TOSCA

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    [ https://issues.oasis-open.org/browse/TOSCA-174?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=38145#comment-38145 ] 

Derek Palma commented on TOSCA-174:
-----------------------------------

A few interesting use cases to consider might be:
1) Deploy a Service Template into a Docker container. I.e. treat the Docker container as a target ComputeNode
2) Treat a Docker image as a deployment artifact and deploy it into a ComputeNode as part of the topology. This would cause a Docker container for the image to be created and interconnected with the rest of the topology.

The modeling abstractions need for this would be:
Docker Container. A ComputeNode which can be instantiated from a docker image. For new deployments with empty containers, a base image can be used (like for use case 1 above) and the appropriate components deployed.
Docker Image: At deployment artifact from which an instance can be created. 

It does not look like a Docker image needs to be modeled much different than a VM image. A Docker container is hosted on a OS versus and VM. The capabilities of a Docker container may be limited initially in terms of network and storage compared to what we can do with a VM.

> Evaluate container lifecycle support in TOSCA
> ---------------------------------------------
>
>                 Key: TOSCA-174
>                 URL: https://issues.oasis-open.org/browse/TOSCA-174
>             Project: OASIS Topology and Orchestration Specification for Cloud Applications (TOSCA) TC
>          Issue Type: New Feature
>         Environment: Docker + OpenStack
>            Reporter: Hemal Vibhaker Surti
>            Assignee: Hemal Vibhaker Surti
>              Labels: Docker,, LXCs, containers, openstack
>
> Dockers support for OpenStack is expected to have substantial impact on service/app life cycle and DevOps functions. This issue is to evaluate
> 1> Overall container supportability in TOSCA
> 2> Containers Life cycle integration in TOSCA
> 3> Container integration in TOSCA orchestrations and workflows



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